Pump.



- No. 669,628. Patented Mar. l2, wol.

J. L. Fosses., rum.

(Applimion med occ. 2e, 1900.) (No Model.) 2 Sheets-,Shoot I.

'mz Noam: PETERS cc.. Primo-Luna.. wmmm'. n. c.

No. 669,628.' Patented Mar. l2, lem.

\ ,.r. L. Fosses.

PUMP.

` (Application med Oct. 26, 1900.) Y. v (No Nudel.) 2 Sheets-Sheet 2.

Unirse JAMES L. FORBES,-OF MOBILE, ALABAMA.

PUNIP.

SPECIFICATION forming part of Letters Patent No. 669,628, dated March12, 1901..

Application iiled October 26, 1900. Serial No. 34,455. i110 modelo Toall whom it may concern.'

Beit known that I, JAMES L. FORBES, a citizen of the United States,residing at Mobile, in the county of Mobile and State of Alabama, haveinvented a new and useful Pump, of which the following is aspecification.

This invention relates to pumps, and more particularly to that classemployed for raising water from deep wells, and while it is especiallyapplicable to wells of great depth it is equally operative when employedin shallow wells.

The object of the invention is to provide a construction in which acolumn of water will be given momentum and this momentum may be employedto form a vacuum which will opcrate to draw the water from the well andinto the tubes or tube of the pump.

In the drawings forming a portion of this specification and in whichsimilar numerals of reference designate like and corresponding parts inboth the views, Figure 1 AisI a vertical central section of the pump andshowing its position in a well.. Fig. 2 is a view similar to Fig. 1 andshowing a different form of pump.

Referring now to Fig. 1 of the drawings,

the pump comprises two cylinders 5 and 6,

from the lower ends of which lead pump-tubes 7 and 8, extendingdownwardly and into the Well below the level of the water. Connectingthe tubes7 and Sand below the waterline is a pipe 9, at the ends ofwhich are formed valve-seats 10 and 11, adapted to alternately receive aball-valve 12, which is adapted for movement longitudinally of the pipe9. Pipes 7 and 8 extend below the pipe 9', and below their connectionswith the pipe 9 are formed upwardly-opening valves 13 and 14, theconnections between the pipes 7, 8, and 9 being formed in any desiredmanner. Connected with the pipe 9 at its upper side and centrallythereotl is an air-chamber 15, the upper portion of which is cylindricaland the lower portion of which is tapered, the communicatingopeningbetween the air-chamber and the pipe 9 having a cross-sectionsubstantially equal to that of each pipe 7 and 8. ln this communicatingopening is formed a valve-seat 16 for a ball-valve 17, which is adaptedto open upwardly or away from the pipe 9. Entering through the top ofthe airchamber 15 is a discharge-pipe 18, which reaches to a point belowthe level of the water in the well and which extends above the top ofthe well and is provided with a hydrant 19. Upon this hydrant isfulcrumed a lever 20, one end of which is pivoted to a piston-rod 21upon a piston 22, fitted within the cylin der 6, a similar solid piston23 being fitted in the cylinder 5 and having a rod 24E, which connectswith the lever 20 at the opposite side of the fulcrum from the rod 2l.The lever 20 has a suitable handle 25, as shown. The operation of thisform of the invention is as follows: The several pipes being filled withwater and the cylinder 5 being full, with the piston 23 raised and thepiston 22 lowered, the valve or ball 12 will rest inthe seat 11 and theball 17 in the seat 16. If the position of the lever 2O be thenreversed, the water will pass down through the pipe 7 and into the pipe9 and thence upwardly in the pipe 8, or rather the water-pressure willbe distributed in this manner. As the waterpressure strikes the valve 12the valve will move through the pipe 9 until it reaches the seat 10,when it will suddenly stop. The water passing downwardly through thepipe 7 is given a high speed, and consequently the water passing throughthe pipe 9 has a high momentum, as has also the Water which is passedupwardly through the pipe 8. WVhen the valve 12 reaches the seat 10, themomentum of the water in the pipe 8, assisted by the suction ofthepiston 22, tends to form a vacuum in the lower portion of the pipe 8,above the valve 13, and with the result that the valve 13 opens, and theWater from the well passes into the pipe 8, and the pipe 8 and cylinder6 are filled. When the valve 12 strikes the seat l0, the momentum of thewater in the pipe 9 is high, and the sudden stoppage of the flow ofwater through the pipe 9 causes the valve 17 to rise from its seat, anda portion of the water in the pipe 9 passes into the air-chamber 15 andcompresses the air. When the pressure Within the air-cham ber equalizesthe inward pressure of water, the valve 17 is seated, and the expansiveforce of the air within the air-chamber immediately acts to establish abalance between the weight of the column of water in the p ipe 18 andhydrant 19 and its own pressure,

IOO

with the result that water is forced from the mouth of the hydrant, thequantity thus forced from the hydrant being equal to the quantity forcedpast the valve 17. If the pistons be then moved to the positions shownin Fig. 1 of the drawings, the Valve 12 will pass to the valve-seatI 1l,with the result that the Valve 14 will be opened and a second quantityof water passed into the compression-chamber 15, the apparatus havingaramming action.

In Fig. 2 of the drawings there is shown a construction comprising acylinder 30, having a piston 31, connected with a lever 32l through themedium ofa piston-rod 33. From the cylinder 30 there extends downwardlyand into the well a pump-tube 34, adjacent to the lower end of which isdisposed an upwardly-opening valve 35. Extending laterally from the pipe34 and at a point above the valve 35 is an upwardly-directed elbow A36,which communicates with a cylindrical air-chamber 37 through the taperedbottom 3S thereof. At the lower end of the tapered bottoni of theairchamber is a valve-seat 39,

adapted to receive a ball-valve 40, this valvehaving a specific gravityslightlyin excess of the water, so that while it will normally lie inthe seat 40, which is disposed below the water-level, it maybe readilyforced from its seat. In practice the pump is disposed in a well to adepth suiicient to bring the waterlevel above the valve 40, and the pumpcylinder and tube, as also the elbow and lower portion of theair-chamber` are filled with. water. The piston 31 being raised,thelever 32 is operated to lower the piston rapidly, when the water withinthe tube 34 is forced downwardly with great speed and pressure iscontributed to the water in the elbow 36, so that the water raises thevalve 40 and enters the air-chamber and compresses the air therein, theWeight of the ball-valve being such that it can be raised under theinfluence of the inflow of water. The piston is then raised, and theelasticity of the air within the air-chamber forces the excess of waterbackwardly and through the elbow 36, the pressure being continued to thewater in the pipe 34, which is forced upwardly through the pipe withconsiderable momentum. While the water is passing upwardly through thepipe 34 the valve 40 suddenly enters its seat 39, and the continuedupward movement of the water in the pipe 34 tends to form a vacuum inthe engagement with the seat.

pipe, with the result that the valve 35 is raised andan additionalquantity'of water enters the pipe 34. The piston is continued upwardlyuntil it reaches a point above the spout 41, which opens outwardlythrough the side of the cylinder 30, the result being that a quantity ofwater will flow from the spout.

It will be readily understood that in practice Various othermodifications of the invention may be made and that any desiredmaterials and proportions may be employed without departing from thespirit of the invention.

What is claimed is- 1. In a pump for deep wells, the combina- 7o tionwith a tube adapted to hold a column of water of a height greater thanwill be sustained by atmospheric pressure, a cylinder connected wi ththe upper end of the tube and having a piston for exerting pressure inthe tube to give momentum to the water in the tube, an upwardly-openingvalve at the bottom of the tube, a discharging air-chamber connectedrwith the lower portion of the tube above the valve thereof forcompression of the air-therein under the influence of the piston, avalve-seat above the first-named valve and between the tube andair-chamber, and a valve movable in the direction of the tube for 2. Ina pump for deep wells, the combination with tubes adapted each to holdacolumn of water at a height greater than will be sustained byatmospheric pressure, of a cylinder connected with the upper end of eachtube, an upwardly-opening valve at the lower end of each tube, a pipeconnecting the tubes at a point above and in close proximity to thevalves, an air-chamber connected directly with the pipe between thetubes to receive 95 lthe entire body of discharge-water therefrom, avalve between the chamber and pipe and opening into the chamber, and adischargepipe leading from the air-chamber, said cylinders havingpistons therein, a valve-seatin Ioo the pipe at each side of theair-cham ber, and

a valve movable longitudinally of the pipe for engagement with saidseats alternately.

In testimony that I clailn the foregoing as my own I have hereto afxedmy signaturein 105 the presence of two witnesses.

JAMES L. FORBES. Witnesses:

S. H. MOCRARY, J. H. RAFIELD.

